Method and apparatus for handling a yarn drawn at a high speed from a bobbin by a processing machine

ABSTRACT

A method of, and apparatus for, handling a yarn withdrawn at a high speed from a bobbin, even possibly intermittently, by means of a yarn processing machine, wherein a yarn reserve is formed between the bobbin and the processing machine from which reserve there can be removed at least during a sudden acceleration in the withdrawal of the yarn, the yarn requirements of the processing machine. The yarn reserve is formed in a yarn storage compartment, the extent of which in one direction is greater than one time the thickness but less than twice the thickness of the yarn intended to be handled by the yarn storage compartment. An air flow or current, preferably a suction flow, is generated which enters the compartment with a speed, in the direction of the axis of passage of the yarn through the yarn storage compartment, which exceeds the average mechanical yarn withdrawal speed and again departs out of the compartment at an angle with regard to the aforementioned axis. By means of this air flow, there is delivered a greater amount of yarn from the bobbin to the compartment than yarn is mechanically removed on the average from this compartment by the yarn processing machine, and the yarn excess is deposited into the yarn storage compartment at a locally limited location in the form of loose, non-tangled loops which for the most part are located adjacent one another.

United States Patent [191 Stutz et al.

[ Nov. 19, 1974 METHOD AND APPARATUS FOR HANDLING A YARN DRAWN AT A HIGH SPEED FROM A BOBBIN BY A PROCESSING MACHINE [75] Inventors: Hans Stutz, Sommerau 171, 8623 Kempten, Switzerland; Josef Huber, Muelhausen, France [73] Assignee: said Stutz, by said Huber [22] Filed: Nov. 17, 1972 [21 Appl. No.: 307,598

[30] Foreign Application Priority Data Nov. 24, 197] Switzerland l7l07/7l Apr. 12, I972 Switzerland... 5347/72 [52] US. Cl. 242/18 R, 242/35.6 R, 242/47 [51] Int. Cl B65h 54/22 [58] Field of Search.. 242/35.6 R, 18 R, 47, 35.5 R; 139/122 R, 122 H; 226/7, 97, 118

Primary Examiner-Stanley N Gilreath [5 7] ABSTRACT A method of, and apparatus for, handling a yarn withdrawn at a high speed from a bobbin, even possibly intermittently, by means of a yarn processing machine, wherein a yarn reserve is formed between the bobbin and the processing machine from which reserve there can be removed at least during a sudden acceleration in the withdrawal of the yarn, the yarn requirements of the processing machine. The yarn reserve is formed in a yarn storage compartment, the extent of which in one direction is greater than one time the thickness but less than twice the thickness of the yarn intended to be handled by the yarn storage compartment. An air flow or current, preferably a suction flow, is generated which enters the compartment with a speed, in the direction of the axis of passage of the yarn through the yarn storage compartment, which exceeds the average mechanical yarn withdrawal speed and again departs out of the compartment at an angle with regard to the aforementioned axis. By means of this air flow, there is delivered a greater amount of yarn from the bobbin to the compartment than yarn is mechanically removed on the average from this compartment by the yarn processing machine, and the yarn excess is deposited into the yarn storage compartment at a locally limited location in the form of loose, non-tangled loops which for the most part are located adjacent one another.

12 Claims, 9 Drawing Figures PATENTE rm] 91974 SNEET 2 BF 3 METHOD AND APPARATUS FOR HANDLING A YARN DRAWN AT A HIGH SPEED FROM A BOBBIN BY A PROCESSING MACHINE BACKGROUND OF THE INVENTION The present invention relates to a new and improved method of handling or treating a yarn withdrawn at high speed from a bobbin by means of a processing machine, the yarn, if desired, can be even intermittently withdrawn from such bobbin, and this invention also relates to a new and improved construction of apparatus for the performance of the aforesaid method. The term yarn as used in the context of this disclosure is employed in a broad sense to cover generally filamentary materials, such as threads, yarns and the like. During the processing of yarns or the like into textiles, especially in weaving, it is of decisive importance for the quality of the product that the yarns are delivered from their bobbins, cops, or the like, at as uniform possible tension to the yarn processing machine. If modern processing machines, with their high output, are required to deliver a qualitatively faultless product, then such require:

a. a completely loosened preparatory position of the yarn, free of any balloons, at the removal location of the processing machine, for instance at the yarn gripper of shuttleless looms or at the yarn regulator of winding machines;

b. a capability of withdrawing the yarn at speeds up to 1,000 m/min;

c. a faultless withdrawal of the yarn at such speeds without forming loops and without twisting;

d. the possibility of accelerating the yarn from standstill within a matter of fractions of seconds to such velocities without subjecting the yarn to increased tension which would be detrimental.

In an attempt to satisfy these requirements, there has become known to the art a method and apparatus by means of which the yarn withdrawn from the bobbin is wound at a first linear velocity approximately tangentially to a drum in a number of coils which however only form one layer upon such drum and by exerting pressure upon the last winding displacing the entire aforementioned layer upon the drum, whereas at the same time the yarn is withdrawn at a second velocity approximately parallel to the axis of the drum from the drum. This second velocity considerably difi'ers from the first velocity, so that the yarn departing from the drum is subjected to a deceleration force which maintains constant the tension of the yarn which leaves the drum. In so doing, the windings located upon the drum form a certain yarn reserve which, during intermittent withdrawal of the yarn by the yarn processing machine, in the first instance become loaded, so that in most cases the first mentioned velocity can remain constant.

However, this known equipment leads to the formation of undesired balloons between it and the processing machine. Additionally, it produces a likewise undesired blocking or retardation, which mechanically loads the thread of yarn, during the course of yarn travel between the bobbin and the processing machine and in the case of a non-twisted yarn particularly is disadvantageous does not guarantee for any torsionless withdrawal.

SUMMARY OF THE INVENTION Hence, from what has been discussed above, it will be recognized that this particular field of technology is still in need of an improved method of, and apparatus for, handling a yarn withdrawn at high speeds, if desired intermittently, from a bobbin by means of a processing machine, in a manner not associated with the aforementioned drawbacks and limitations of the prior art constructions.

It is therefore a primary object of the present invention to provide an improved method of, and apparatus for, treating a yarn withdrawn in this manner from the bobbin by a processing machine in a manner not associ ated with the aforementioned drawbacks and limitations of the prior art proposals.

Now, in order to implement this object and others which will become more readily apparent as the description proceeds, the inventive method contemplates that for forming the yarn reserve in a yarn storage compartment, the dimensional extent or extension of which in one direction is greater than once the thickness but less than twice the thickness of yarn for which it is intended, there is formed an air current, preferably a suction flow, which enters into the compartment in the direction of the axis of the yarn throughpassage with a velocity or speed which exceeds the average mechanical yarn withdrawal speed, and which flow again departs from the compartment at an angle with regard to such axis. With the aid of this air current, more yarn is delivered from the bobbin to the compartment than yarn is removed on the average mechanically by the processing machine from such compartment, and the excess yarn is deposited in loose, non-tangled loops which, for the most part, are located next to one another at a locally limited or defined location in the compartment.

In contrast to the known methods and apparatuses which work with a wound yarn reserve which, during withdrawal, automatically leads to the formation of balloons, the method of this development operates with a loose yarn reserve, the withdrawal of which is possible without any mechanical blocking or retardation.

As already indicated above, a further aspect of this development relates to an apparatus for carrying out the aforesaid method. This apparatus is manifested by the features that it possesses a yarn storage compartment into one side of which there opens a yarn infeed conduit. At the opposite side of the yarn storage compartment, in the extension of the yarn delivery conduit, there is connected a yarn withdrawal conduit. The yarn storage compartment possesses a dimensional extension or extended portion in a plane containing the axes of both conduits which exceeds the diameters of the conduits and a further extension, perpendicular to the aforementioned extension exceeding a transversely disposed dimensional extent of each of the conduits, in particular the diameter of the conduits, which is greater than one time the thickness but less than twice the thickness of the yarn for which the equipment is intended. At least one boundary wall of the compartment possesses air outlet or efflux openings by means of which there can be generated an air flow in the yarn storage compartment when the air outlet openings are connected to a source of suction, this air flow enclosing an angle with the axes of both aforementioned conduits.

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be better understood and objects other than those set forth above, will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:

FIG. 1 is a cross-sectional view of a first embodiment of apparatus for treating a yarn or the like between a bobbin and a yarn processing machine, taken substantially along the line I-I of FIG. 2;

FIG. 2 is a cross-sectional view of the arrangement of FIG. 1, taken substantially along the line II-II thereof;

FIG. 3 is a partial sectional view of a second embodiment of apparatus for treating a yarn between a bobbin and a yarn processing machine;

FIG. 4 is a cross-sectional view of the arrangement of FIG. 3, taken substantially along the line IV-IV thereof;

FIG. 5 is a cross-sectional view of the arrangement of FIG. 3, taken substantially along the line VV thereof;

FIG. 6 schematically illustrates a variant embodiment of a portion of the apparatus of FIGS. 3-5 inclusive;

FIG. 7 is a further variant of the same component shown in FIG. 6;

FIG. 8 is a thirdvariant embodiment of such component;

FIG. 9 is a further variant embodiment of a portion of the apparatus depicted in FIGS. 3-5.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Describing now the drawings, reference numeral 21 generally represents a circular-cylindrical container in which is sealingly mounted a disk 22. At the underside 22a of the disk 22 there are supported two symmetrically arranged approximately sector-shaped thin plates 23 and 24. By means of these plates 23 and 24 there is formed within the container 21, between the disk 22 and the floor 25 of the container 21, a flat compartment 26. Two coaxial conduits or pipes 28 and 29 in the form of tubes open through the sidewall 27 of the container 21 into diammetrically opposed sides of the compartment 26. As should be readily understood the peripheral boundary of the compartment 26 is partially formed by the edges of the plates 23 and 24 and partially by the inner surface of the side wall 27 of the container. Within this peripheral boundary, there are provided at the container floor 25, a series of air throughpassage or outlet openings 30 which open into a suction connection or stud 31 connected to any suitable and therefore only schematically illustrated negative pressure source S. The compartment 26 forms a yarn or thread storage, as will be explained more fully hereinafter.

The described equipment is employed in the following manner:

a yarn F (FIG. 1) which is withdrawn from a bobbin or the like, schematically indicated by reference character B, and should be delivered to a processing machine, schematically indicated by reference character P, for instance the gripper of a shuttleless loom, is drawn from the bobbin B through the infeed tube 28, through the yarn storage compartment 26, out of such compartment through the outfeed tube 29 and then delivered to the schematically illustrated processing machine P. Thereafter, the stud 31 is connected in flow communication with the vacuum device S. Consequently, air is sucked away from all air throughpassage openings 30 and which is also sucked through the conduits or tubes 28 and 29. A suction flow prevails in the yarn storage compartment 26 as such has been schematically indicated by the arrows. Under the action of the radial components of this flow, which impinge against the yarn F at an angle to its lengthwise axis, the yarn is deflected transversely with respect to its direction of travel. Since it is retained after its departure from the tube or conduit 29, by the yarn processing machine P, the yam requirements, i.e., the amount of yarn necessary for such deflection are withdrawn from the bobbin B, wherein such is further assisted by the flow in the yarn'infeed tube 28 in that the air flows through the tube 28 into the compartment 26 with a velocity which exceeds the average mechanical yarn withdrawal speed of the yarn processing machine P. Hence, with the aid of this air flow, a greater amount of yarn is delivered from the bobbin B or the like to the compartment 26 .than yarn F is mechanically removed on the average from this compartment through the conduit 29 by the processing machine P. In this way, there is formed in the compartment 26 a yarn reserve in the form of a multiplicity of loose, non-intertwined or nontangled loops 50 which for the most part are located adjacent one another in a plane in the compartment 26 as such has been indicated in FIG. 1. This yarn reserve progressively stops-up the air throughflow openings 30, so that after a certain length of yarn has been deposited into the compartment 26 in the form of loops 50, further increase of the yarn reserve is suppressed.

Thus, it will be recognized that the yarn reserve is self-regulating owing to increased throttling of the air flow. Now, the yarn processing machine P withdraws from such yarn reserve, through the conduit 29, the yarn required for its operation. Withdrawal of the yarn can occur without the formation of balloons, and wherein the air flow in the conduit 29 opposite to the direction of yarn withdrawal produces a beneficial braking or retardation of the yarn F which effectively prevents any dangerous throughhang of the yarn between its departure from the conduit 29 and the yarn processing machine P. Since the yarn reserve is not wound, rather is loose, evenly concentrated, it is also possible to carry out an intermittent withdrawal of the yarn from the yarn reserve, as such would arise in the case of shuttleless looms, wherein the yarn requirements of the processing machine can be increased in a matter of fractions of a second from zero up to 1,000 m/sec., and there are neither formed any ballons at the outlet of the conduit 29 nor does there occur any impermissible increase in the yarn tension. As soon as the air throughpassage through the openings 30 is again freed owing to withdrawal of yarn out of the yarn storage compartment 26, then there is repeated the operation of forming the yarn loops 50. The build-up of the thread or yarn reserve and maintaining such approximately constant is self-regulating according to the yarn requirements of the processing machine.

The height of the compartment 26 is accommodated to the type and thickness of the yarn to be treated with the equipment. It should not be too large in order that the thread or yarn loops forming, owing to the action of the air current, do not tangle or intertwine. In the ideal case, all of the loops should be located in a plane next to one another. This can be realized in that the height of the compartment is chosen to be greater than the yarn thickness, however smaller than twice the yarn thickness. The height of the yarn compartment 26 is determined by the thickness of the plates 23 and 24. Likewise, the shape of the compartment 26 is essentially influenced by the plates 23 and 24 especially by the configuration of the surfaces thereof limiting the compartment 26.

By exchanging the disk 22 for a different one having thicker, thinner and/or other shaped plates 23, 24 the equipment can be quickly and simply accommodated to different types of yarns, or the like.

In this regard, it is worthy of mention that the equipment during use is self-cleaning owing to the continuous wiping action of the yarns over the openings 30, as-

. sisted by the air current leaving the compartment 26 through these openings, which for such type equipment is, without doubt, of particular advantage.

Yarn storage compartment, yarn infeed conduit and yarn out'feed or withdrawal conduit also could be exchangeably accommodated as a unit in a vacuum compartment. One such embodiment possessing a yarn storage container constructed differently from that shown and considered with regard to the embodiment of FIG. 1 has been illustrated in FIGS. 3 to 5.

In these Figures, there are designated by means of reference characters 1 and 2, two plates which, in the illustrated assembled condition, limit a spherical vacuum compartment or chamber 3 into which opens or merges a suction connection or stud 4 which is connected with a non-illustrated source of negative pressure, but like for instance vacuum source S of FIG. 1. In the compartment 3 there is arranged the yarn storage container 5 which will be considered more fully hereinafter. Two coaxial conduits or pipes 6 and 7 are connected at opposite sides of the yarn storage container 5 and serve as the yarn infeed conduit and the yarn withdrawal or outfeed conduit respectively and wherein one is longer than the other.

The yarn storage container 5 consists of two plates 8 g and 9 which bear upon one another and which possess at their confronting surfaces a respective circular diskshaped recess 10 and 11 which are of the same size, so that between the disks 8 and 9 there is formed a flat circular-disk-shaped compartment 12 into which opens, at opposite sides in the extension of the diameter, both of the conduits 6 and 7. The peripheral boundary of the compartment 12 is formed by the edges of the recesses 10 and 11 and at such edges there are provided a series of air throughpassage or outlet openings 13 which extend radially with regard to the compartment 12.

The yarn F is drawn from the non-illustrated bobbin, like the bobbin B of FIG. 1, through the longer conduit 6, through the yarn storage container 5, out of such container, through the shorter pipe or conduit 7 and to the non-illustrated processing machine, like the processing machine P of FIG. 1. When the connection 4 is coupled in flow relationship with the vacuum device, then air is sucked-away at all of the air throughpassage openings 13, which is also sucked through the conduits 6 and 7. There prevails a suction flow at the yarn storage container 5 in the plane of the compartment 12 as such has been schematically represented by the arrows. Under the action of this flow, which impinges the yarn F at an angle to its lengthwise axis, the yarn is pressed against the air throughpassage openings 13. Since it is retained by the yarn processing machine after its departure from the conduit 7, the yarn requirements needed for such deflection is withdrawn from the bobbin, and wherein such is still further assisted by the flow in the yarn infeed conduit 6. Hence, in this manner there exists in the compartment 12, exactly as was the case in the compartment 26 of the embodiment of FIGS. 1 and 2, a yarn reserve in the form of a multiplicity of loose non-tangled adjacently situated loops 50 which for the most part are located in the plane in the compartment 12, as such has been depicted in FIG. 4. Also with this embodiment this yarn reserve increasingly clogs the air throughpassage or outlet openings 13, so that after there is present a certain length of yarn in the form of deposited loops in the compartment 12, there is suppressed any further increase of the yarn reserve. The yarn processing machine mechanically withdraws the yarn required for its operation through the outfeed or delivery conduit 7. The withdrawal here also can occur without the formation of balloons, wherein the air current, which flows opposite to the direction of withdrawal of the yarn in the pipe or conduit 7, produces the desirable braking or retardation of the yarn which prevents any throughhang of the yarn. As soon as the air throughpassage through the openings 13 is again freed owing to withdrawal of yarn out of the yarn storage container, then the operation of forming of the yarn loops is repeated. The formation of the yarn reserve and maintaining such approximately constant is self-regulating as a function of the yarn requirements of the processing machine.

Just as was the case for the embodiment of FIGS. 1 and 2, the height of the compartment 12 is greater than the thickness of the yarn however smaller than twice the yarn thickness which is to be treated by the equipment, in order to avoid entanglement or intertwining of the yarn.

With the embodiment of FIGS. 3 to 5 the air throughpassage openings 13 extend radially with regard to the yarn storage compartment 12. Depending upon the type or nature of the yarn to be treated or processed, the arrangement of the air throughpassage openings, as depicted in FIG. 6, could also provide advantages, wherein these openings 13 which are parallel to one another are all perpendicular to the axes of both conduits or tubes 6 and 7 and the axis of the yarn.

This is also the case for the variant embodiment depicted in FIG. 8 wherein, instead of a circular diskshaped yarn storage compartment 12, there is employed one having a rectangular cross section.

Further variant embodiments are illustrated in FIG. 7 possessing a circular disk-shaped yarn storage compartment 12 and FIG. 9 possessing a rectangularshaped compartment 12. In both of these embodiments the air throughpassage openings 13 are inclined with respect to the axis of the yarn towards the opening of the yarn infeed conduit 6 (FIG. 7) or the yarn withdrawal conduit 7 (FIG. 9).

If an apparatus of the type depicted in FIGS. 1 and 2 is employed in a vacuum compartment, then air throughpassage openings could be employed apart from the floor also at the cover or closure of the compartment 26, as schematically depicted by phantom lines 55 of FIG. 2.

Apart from the shape, size and arrangement of the air throughpassage openings 13 and the yarn storage compartment 12, the intensity of the air current also influences the formation of the yarn reverse and the degree of self-regulation thereof.

After detaching both of the plates 1 and 2 from one another, the unit, formed of the conduits 6 and 7 and the yarn storage compartment 12, can be removed and replaced by a different type of'yam. The accommodation of the equipment to different types of yarns can therefore be carried out in the shortest time with very few operations or manipulations.

Also the length of the yarn infeed conduit and yarn withdrawal conduit is not without influence upon the treatment of the yarn, for which reason the possibility of replacing a unit mounted in the compartment 3 by a different one which differs from the first one with regard to the length and, if desired, the diameter of the yarn infeed conduit and yarn withdrawal conduit is of advantage.

In each instance, during use of the described apparatuses, the yarn is withdrawn without friction from a yarn carrier. It is formed, in the most protective manner, into a yarn reserve, the length of which can be accommodated, by the selection of the surfaces, volume and height of the compartment as well as the number and arrangement of the air throughpassage openings and finally by the intensity and direction of the air current, to the requirements of the yarn processing machine and the yarn can be withdrawn by the yarn processing machine without mechanical braking or retardation, without twisting and without the formation of balloons, whereby also it cannot be overloaded by thus occurring maximum acceleration values.

This is realized by an apparatus with low spatial and power requirements which does not possess any movable components and additionally can be accommodated very simply to different types of yarns. The equipment does not have any mechanical or electrical components and can be mounted rapidly and without any problem at existing machines without any additional floor space requirements.

Regulation of the length and momentary reserve could also occur by means of photoelectric cell arrangement, schematically indicated by reference character 70 in FIG. 6, which upon reaching a predetermined degree of filling of the compartment, interrupts the further delivery or infeed of the yarn and again allows such to occur when, upon removal of yarn from the reserve, this has again reduced in size.

While there is shown and described present preferred embodiments of the invention, it is to be distinctly understood that the invention is not limited thereto, but may be otherwise variously embodied and practiced within the scope of the following claims. Accordingly,

What is claimed is:

l. A method of withdrawing yarn from a bobbin at high speeds by means of a processing machine, comprising the steps of:

A. providing a yam storage compartment having a yarn inlet, yarn outlet and an air outlet therebe tween, the air outlet communicating with a vacuum producing device, the storage compartment having a dimensional extent in one direction greater than once but less than twice the thickness of the yarn intended to be handled by the storage compartment;

B. maintaining a vacuum in the yarn storage compartment and generating an air flow into the yarn storage compartment via the yarn inlet and yarn outlet and removing the air entering by the vacuum producing device through the air outlet;

C. removing yarn from the bobbin via the generated air flow acting on the yarn entering the storage compartment; and

D. automatically regulating the quantity of yarn being stored in the storage compartment by varying the degree of vacuum in the yarn storage compartment by the volume and/or quantity of the stored yarn, and hence, the quantity and/or velocity of air entering the storage compartment whereby the stored yarn is maintained in a loosened condition permitting ready removal by the yarn processing machine without entanglements, twist, and free of balloons. v

2. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, 21 yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possessing a further dimensional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and wherein said yarn storage compartment possesses a substantially disk-shaped configuration, said yarn storage compartment including a floor, said air throughpassage openings being formed at least at the floor of said yarn storage compartment.

3. The apparatus as defined in claim 2, further including suction means flow communicating with said air throughpassage openings for generating the air current in the yarn storage compartment.

4. The apparatus as defined in claim 2, wherein said yarn storage compartment possesses a substantially circular disk-shaped configuration.

5. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, a yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possesssing a further dimensional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and wherein said yarn storage compartment possesses a substantially circular disk-shaped configuration, and said air throughpassage openings are arranged at the periphery of the circular disk-shaped yarn storage compartment in the form of radially extending air outlet openings.

6. The apparatus as defined in claim 5, wherein said radially extending air outlet openings are perpendicular to the respective lengthwise axis of the yarn infeed conduit and yarn withdrawal conduit.

7. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, a yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possessing a further dimen sional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and wherein said means providing said yarn storage compartment embodies a container and a disk member sealingly seated in said container, plate means provided at the underside of the disk member for at least partially determining the height of the yarn storage compartment and the peripheral configuration of such yarn storage compartment.

8. The apparatus as defined in claim 7, wherein the disk member and the plate members are exchangeable.

9. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, a yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possessing a further dimensional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and further including means defining a vacuum compartment, and wherein the yarn storage compartment, the yarn infeed conduit, and the yarn withdrawal conduit define a unit exchangeably arranged within the vacuum compartment.

10. The apparatus as defined in claim 2, wherein the yarn storage compartment includes a closure portion, and wherein said air throughpassage openings are provided both at the floor and closure portion of the yarn storage compartment.

11. The apparatus as defined in claim 2, wherein said yarn infeed conduit and said yarn withdrawal conduit are located at substantially diametrically opposed locations of said yarn storage compartment and are in substantial axial alignment with one another.

12. The apparatus as defined in claim 2, wherein each said transversely disposed dimensional extent of each conduit constitutes a diameter of such conduit. 

1. A method of withdrawing yarn from a bobbin at high speeds by means of a processing machine, comprising the steps of: A. providing a yarn storage compartment having a yarn inlet, yarn outlet and an air outlet therebetween, the air outlet communicating with a vacuum producing device, the storage compartment having a dimensional extent in one direction greater than once but less than twice the thickness of the yarn intended to be handled by the storage compartment; B. maintaining a vacuum in the yarn storage compartment and generating an air flow into the yarn storage compartment via the yarn inlet and yarn outlet and removing the air entering by the vacuum producing device through the air outlet; C. removing yarn from the bobbin via the generated air flow acting on the yarn entering the storage compartment; and D. automatically regulating the quantity of yarn being stored in the storage compartment by varying the degree of vacuum in the yarn storage compartment by the volume and/or quantity of the stored yarn, and hence, the quantity and/or velocity of air entering the storage compartment whereby the stored yarn is maintained in a loosened condition permitting ready removal by the yarn processing machine without entanglements, twist, and free of balloons.
 2. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, a yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possessing a further dimensional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and wherein said yarn storage compartment possesses a substantially disk-shaped configuration, said yarn storage compartment including a floor, said air throughpassage openings being formed at least at the floor of said yarn storage compartment.
 3. The apparatus as defined in claim 2, further including suction means flow communicating with said air throughpassage Openings for generating the air current in the yarn storage compartment.
 4. The apparatus as defined in claim 2, wherein said yarn storage compartment possesses a substantially circular disk-shaped configuration.
 5. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, a yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possesssing a further dimensional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and wherein said yarn storage compartment possesses a substantially circular disk-shaped configuration, and said air throughpassage openings are arranged at the periphery of the circular disk-shaped yarn storage compartment in the form of radially extending air outlet openings.
 6. The apparatus as defined in claim 5, wherein said radially extending air outlet openings are perpendicular to the respective lengthwise axis of the yarn infeed conduit and yarn withdrawal conduit.
 7. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, a yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possessing a further dimensional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and wherein said means providing said yarn storage compartment embodies a container and a disk member sealingly seated in said container, plate means provided at the underside of the disk member for at least partiAlly determining the height of the yarn storage compartment and the peripheral configuration of such yarn storage compartment.
 8. The apparatus as defined in claim 7, wherein the disk member and the plate members are exchangeable.
 9. An apparatus for handling a yarn withdrawn at a high speed from a bobbin by means of a yarn processing machine, the yarn, if desired, being intermittently withdrawn from the bobbin, comprising means providing a yarn storage compartment, a yarn infeed conduit for the travel of the yarn therethrough in a given direction and opening into the yarn storage compartment at one side of the yarn storage compartment, a yarn withdrawal conduit for the travel of the yarn therethrough in a given direction and which opens at the opposite side of the yarn storage compartment into said yarn storage compartment, each of said conduits having a dimensional extent which is transversely disposed with respect to the direction of travel of the yarn through said conduits, said yarn storage compartment possessing a dimensional extent in a plane containing the axes of both conduits which exceeds the transversely disposed dimensional extent of each of the conduits, said yarn storage compartment possessing a further dimensional extent perpendicular to the dimensional extent which exceeds the transversely disposed dimensional extent of each of the conduits and which further dimensional extent is greater than once but less than twice the thickness of the yarn intended to be handled by the apparatus, said yarn storage compartment having at least one boundary wall thereof provided with air throughpassage openings by means of which there can be produced an air current in the yarn storage compartment which encloses an angle with respect to the axes of both conduits, and further including means defining a vacuum compartment, and wherein the yarn storage compartment, the yarn infeed conduit, and the yarn withdrawal conduit define a unit exchangeably arranged within the vacuum compartment.
 10. The apparatus as defined in claim 2, wherein the yarn storage compartment includes a closure portion, and wherein said air throughpassage openings are provided both at the floor and closure portion of the yarn storage compartment.
 11. The apparatus as defined in claim 2, wherein said yarn infeed conduit and said yarn withdrawal conduit are located at substantially diametrically opposed locations of said yarn storage compartment and are in substantial axial alignment with one another.
 12. The apparatus as defined in claim 2, wherein each said transversely disposed dimensional extent of each conduit constitutes a diameter of such conduit. 